Folkert kaempen



(No Model.)

F. KA-EMPEN, Jr.

DRAFT REGULATOR FOR STOVES, &0.

No. 549,067. Patented Oct. 29, 1895.

NITED STATES PATENT OFFICE.

FOLKERT KAEMPEN, JR., OF QUINCY, ILLINOIS, ASSIGNOR TO THE GEM CITYSTOVE MANUFACTURING COMPANY, OF SAME PLACE.

DRAFT-REGULATOR FOR STOVES, 84c.

SPECIFICATION forming part of Letters Patent No. 549,067, dated October29, 1895.

Application filed May 2, 1895- Serial No. 547,908- (No model.) I

To all whom it may concern:

Be it known that I, FOLKERT KAEMPEN, J r., a citizen of the UnitedStates, residing at Quincy, in the county of Adams and State ofIllinois, have invented new and useful Im-' provements inDraft-Regulators for Stoves, &c., of which the following is aspecification.

This invention relates to draft-regulators for ranges, cook or heatingstoves, and has for IO its object to provide improved means for openingand closing the damper or hinged door controlling the admission of airto the fire for supporting combustion and for holding said door open andlocking the same when closed.

I 5 To these ends my invention consists in the novel features and in theconstruction or arrangement of parts hereinafter fully described, andpointed out in the claims following the description, due reference beinghad to the accompanying drawings, forming a part of this specification,wherein- Figure l is a perspective view illustrating the damper open.Fig. 2 is a sectional elevation, the parts being shown in the sameposition. Fig. 3 is a similar view showing the damper closed. Fig. 4: isa detail view illustrating the projecting lug on the damper.

I have illustrated my invention as applied to the base-door of a stove;but it will be evi- 3o dent that it can be applied to any portion of thestove wherein a draft-regulator is employed.

In order that those skilled in the art may make and use my invention, Iwill describe 5 the same in detail, reference being had to saiddrawings, wherein- The numeral 1 indicates the base-door of a stove, 2the draft-opening formed therein, and 3 the damper controlling saidopening.

4: As shown, said damper consists of a door hinged at its upper edge byhinge-knuckles 4. to corresponding hinge-knuckles 5, formed on thebase-door. Projecting from one of the hinge-knuckles 4, formed on thedamper 3, is 5 a log 6, having an inclined upper face 7 and providedupon its under side with acam-face 8, for the purpose hereinafterdescribed. Secured to the base-door 1 is a pivot-bolt 9, upon which isjournaled the damper-operat- 5o ing lever 10. Said lever at one edge isprovided with a cam 11, that is formed eccentrically to the center ofsaid lever, and is undercut upon its lower side, as at 12, so as .tooverhang the inclined upper face 7 of the lug 6, formed on thehinge-knuckle of the damper, said cam 11 gradually increasing inthickness from its inner to its outer end, where it terminates in anabrupt inclined shoulder 14.

The operating-lever 10 is also provided with an inclined cam projection15, adapted to en- '60 gage the cam-face 8, formed on the under side ofthelug 6, said cam projection being inclined in adirection opposite tothe inclination of the cam 11, before described.

The operation of my improved device is as follows: Let it be assumedthat the damper is closed. Then by swinging the handle 10 toward theright the overhanging portion 12 of the cam 11 engages the inclinedupper face 7 of the lug 6 and swings said damper up upon its hinges, andthe cam 11 being formed eccentrically, as described, it will continue tobear upon the said inclined face 7 of the lug as the latter is forceddownward and outward by the continued rotation of the lever until theabrupt inclined shoulder 14 bears against the inclined face 7 of the lug6, at which time the damper will have swung wide open and will be heldin such position by the said shoulder. Upon swinging the lever in theopposite direction the cam 11 gradually recedes from the inclined face 7of the lug and permits the damper to swing down and close. Upon thecontinued rotation of the lever in the same direction the inclined camprojection 15 engages the cam-face 8, formed on the under side of thelog 6 and forces said lug upward and outward, thus forcibly closing thedamper and looking it in its closed position.

From the foregoing it will be understood that the cam-faces of theoperating-lever 10 may be caused to engage the opposite faces of the lug6, and either hold the damper open or look it closed, the single lugserving for 5 both purposes, the said faces of the lug being alternatelyengaged by said cam as the lever is swung upon its pivot-bolt inopposite directions to open and close the damper.-

Having described my invention, what I claim is- 1. In a stove, thecombination with a damper hinged over a draft opening and provided witha projecting lug arranged to one sideot' the hinge pintle and havinginclined upper and under faces, of an oscillating lever provided with acam 12 formed eccentrically to the pivotal center of said operatinglever and adapted to engage the inclined upper face of said lug to openthe damper, and also provided with a cam 15 having an upper inclinedface adapted to engage the under inclined face of the said lug to lockthe damper closed, the ending of the cam 15 and be ginning of the cam 12being co-incident, substantially as described.

2. In a stove, the combination with a damper hinged over a draft openingand provided with a laterally projecting lug arranged to one side of thehinge pintle and having an upper inclined face, of an oscillatingoperating lever provided with a cam 12 adapted to engage the inclinedupper face of said lug, the said cam being formed eccentrically to thepivotal center of said operating lever and provided with a cam-facedshoulder 14 for engaging said lug and holding the damper open, thecam-faced shoulder 14 beginning at the point where the cam 12 ends,substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

FOLKERT KAEMPEN, J R.

Witnesses:

WM. H. HEIDBREDER, HERM HOENER.

